Human Activities and Earth's Atmosphere
Chapter , Problem 31E(choose chapter or problem)
Alcohol-based fuels for automobiles lead to the production of formaldehyde \(\left(\mathrm{CH}_{2} \mathrm{O}\right)\) in exhaust gases. Formaldehyde undergoes photodissociation, which contributes to photochemical smog:
\(\mathrm{CH}_{2} \mathrm{O}+h v \rightarrow \mathrm{CHO}+\mathrm{H}\)
The maximum wavelength of light that can cause this reaction is . (a) In what part of the electromagnetic spectrum is light with this wavelength found? (b) What is the maximum strength of a bond, in
, that can be broken by absorption of a photon of
light? (c) Compare your answer from part (b) to the appropriate value from Table
. What do you conclude about
bond energy in formaldehyde? (d) Write out the formaldehyde photodissociation reaction, showing Lewis-dot structures.
Equation transcription:
Text transcription:
({CH}_{2}{O})
{CH}_{2}{O}+h v rightarrow{CHO}+{H}
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